Vehicle air comfort system and method
09719703 · 2017-08-01
Assignee
Inventors
- Tony Quisenberry (Highland Village, TX, US)
- Sam K. McSpadden (Austin, TX, US)
- Christopher Alan Polser (Plano, TX, US)
- Niran Balachandran (Lewisville, TX, US)
Cpc classification
B60H1/2221
PERFORMING OPERATIONS; TRANSPORTING
F28D15/0275
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Y02T10/88
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F25B21/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F25B21/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F28D15/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B60H1/22
PERFORMING OPERATIONS; TRANSPORTING
F25B21/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
Vehicle air comfort systems and methods. The systems and methods may comprise: (1) a plurality of flow tunnels for passage of a heat-transfer fluid; (2) a thermoelectric cooler in thermal communication with the flow tunnels for thermally conditioning the heat-transfer fluid in the flow tunnels; (3) an air inlet for receiving unconditioned air; (4) a thermal exchange assembly for facilitating thermal exchange between the thermally conditioned heat-transfer fluid and the unconditioned air to result in conditioning of the air; and (5) an air outlet for outputting the conditioned air into the vehicle.
Claims
1. A vehicle air comfort system comprising: a plurality of flow tunnels for passage of a heat-transfer fluid; a thermoelectric cooler in thermal communication with the flow tunnels, wherein the thermoelectric cooler is operable to thermally condition the heat-transfer fluid in the flow tunnels; an air inlet for receiving unconditioned air; a thermal exchange assembly operable to facilitate thermal exchange between the thermally conditioned heat-transfer fluid and the unconditioned air, wherein the thermal exchange results in the conditioning of the unconditioned air; and an air outlet for outputting the conditioned air into the vehicle.
2. The vehicle air comfort system of claim 1, wherein the conditioning comprises cooling the unconditioned air.
3. The vehicle air comfort system of claim 2, wherein the thermal conditioning comprises cooling the heat-transfer fluid, and wherein the thermal exchange comprises the transfer of heat from the unconditioned air to the thermally conditioned heat transfer fluid.
4. The vehicle air comfort system of claim 1, wherein the conditioning comprises heating the unconditioned air.
5. The vehicle air comfort system of claim 4, wherein the thermal conditioning comprises heating the heat-transfer fluid, and wherein the thermal exchange comprises the transfer of heat from the thermally conditioned heat transfer fluid to the unconditioned air.
6. The vehicle air comfort system of claim 1, wherein the system further comprises a plurality of fins operable to dissipate thermal energy from the thermoelectric cooler.
7. The vehicle air comfort system of claim 1, wherein the system further comprises a thermoelectric cooler exhaust for outputting dissipated thermal energy from the thermoelectric cooler.
8. The vehicle air comfort system of claim 1, wherein the thermal exchange assembly comprises: a fluid inlet for receiving the thermally conditioned heat transfer fluid; a body for facilitating thermal exchange between the thermally conditioned heat transfer fluid and the unconditioned air; and a fluid outlet for outputting the heat transfer fluid after the thermal exchange.
9. The vehicle air comfort system of claim 1, wherein the thermal exchange assembly is a radiator.
10. The vehicle air comfort system of claim 1, wherein the system further comprises a tubing network operable to place the flow tunnels in fluid communication with the thermal exchange assembly.
11. The vehicle air comfort system of claim 10, wherein the tubing network is a closed-loop circuit.
12. The vehicle air comfort system of claim 10, wherein the tubing network further comprises a pump for facilitating transport of the heat-transfer fluid through the tubing network.
13. The vehicle air comfort system of claim 1, wherein the heat-transfer fluid is a coolant.
14. The vehicle air comfort system of claim 1, wherein the system further comprises one or more fans for facilitating movement of conditioned or unconditioned air.
15. The vehicle air comfort system of claim 14, wherein the one or more fans move unconditioned air from the air inlet to the thermal exchange assembly.
16. The vehicle air comfort system of claim 14, wherein the one or more fans move conditioned air from the thermal exchange assembly to the air outlet.
17. The vehicle air comfort system of claim 1, wherein the system further comprises a pre-cool unit for pre-cooling the unconditioned air.
18. The vehicle air comfort system of claim 1, wherein the system further comprises one or more filter units for filtering the conditioned or unconditioned air.
19. The vehicle air comfort system of claim 1, wherein the system further comprises an evaporator unit for humidifying the conditioned or unconditioned air.
20. The vehicle air comfort system of claim 1, wherein the vehicle is a truck.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) A more complete understanding of the method and apparatus of the present invention may be obtained by reference to the following Detailed Description when taken in conjunction with the accompanying Drawings wherein:
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DETAILED DESCRIPTION OF ILLUSTRATIVE
Embodiments of the Invention
(9) In accordance with one aspect of the invention, methods and systems that provide a substantially emission-free solution and afford a comfortable environment inside an enclosure, such as, for example, inside a parked vehicle. More specifically, in accordance with other aspects of the invention, the present invention provides numerous vehicle air comfort systems and methods to condition the air inside a vehicle.
(10) In some embodiments, the vehicle air comfort systems and methods of the present invention can be used to condition the air inside a truck, such as Class 7 sleeper trucks or Class 8 day cab trucks. In other embodiments, the vehicle air comfort systems and methods of the present invention may be used to condition the air inside a tractor-trailer. In more specific embodiments, the vehicle air comfort systems and methods of the present invention can be used to condition the air in a cabin or a sleeping space of a vehicle.
(11) The vehicle air comfort systems of the present invention can be powered by numerous sources, such as by the vehicle's battery unit, or by a power supply independent of the vehicle's battery unit. In other embodiments, the systems can be powered by solar energy. In more specific embodiments, the systems may be powered by utilizing Lead-Acid or Lithium-Ion batteries as the energy source.
(12) In a first example, a vehicle air comfort system of the present invention, as discussed in more detail below, may comprise: (1) an air inlet, such as a return air compartment, for receiving unconditioned air; (2) a plurality of flow tunnels for passage of the unconditioned air; (3) a thermoelectric cooler (TEC) in thermal communication with the flow tunnels for conditioning the passing unconditioned air; and (4) an air outlet, such as a vent, for outputting the conditioned air into a vehicle. However, as will be understood by one skilled in the art, the order and arrangement of the above-mentioned vehicle air comfort system components may be varied while still accomplishing the goal of conditioning the air. Likewise, in additional embodiments, one or more of the above-mentioned components may be entirely absent while sill accomplishing the goal of conditioning the air.
(13) In some embodiments, conditioning entails cooling the unconditioned air. This can occur by the removal of heat from the flow tunnels by the thermoelectric cooler(s) that are in thermal communication with them. In additional embodiments, conditioning entails heating the unconditioned air, which can occur by the addition of heat to the flow tunnels by the thermoelectric cooler(s).
(14) In other embodiments, vehicle air comfort systems may include additional components. For instance, in some embodiments, a vehicle air comfort system can comprise a plurality of thermoelectric coolers that are in thermal communication with the flow tunnels. In additional embodiments, the system can comprise a plurality of fins that are operable to dissipate thermal energy from the thermoelectric coolers. Vehicle air comfort systems can also comprise a thermoelectric cooler exhaust for outputting dissipated thermal energy from the thermoelectric cooler. In other embodiments, the vehicle air comfort systems can comprise one or more fans that are operable to move conditioned or unconditioned air within a system. For instance, the fans may be speed-controlled fans to push and/or pull air across a system.
(15) In additional embodiments, a vehicle air comfort system can further comprise a pre-cool unit for pre-cooling the unconditioned air before the conditioning occurs. In other embodiments, a vehicle air comfort system can comprise one or more filter units for filtering the conditioned and/or unconditioned air, a water pumping unit to add water to filter units, and/or an evaporator unit for humidifying the conditioned or unconditioned air.
(16) In additional embodiments, a vehicle air comfort system can further comprise one or more sensors for monitoring one or more conditions that are associated with a system. For instance, sensors may exist for monitoring conditions such as the temperature of the unconditioned air, the temperature of the conditioned air, the humidity of the conditioned air, and/or the humidity of the unconditioned air. In additional embodiments, the vehicle air comfort system can also comprise a user interface that is operable to display the monitored conditions to a user. In additional embodiments, a user interface may enable a user to control the monitored conditions. In further embodiments, a controller may control the monitored conditions automatically.
(17) Referring now to the drawings,
(18) Referring again to
(19) As shown in
(20) In the embodiment shown in
(21) In various embodiments, a plurality of sensors may be utilized to monitor various aspects of the system 100 and/or the environment. For example, in various embodiments, the system 100 may have a controller 110 containing one or more processors adapted to receive a plurality of signals from one or more of the plurality of sensors. The sensors may be disposed so as to monitor the temperature inside the enclosed space, the temperature outside the enclosed space, the humidity of the air, the battery power, and/or any other aspect that may need to be monitored to ensure a comfortable environment inside the enclosed space. In some embodiments, the system 100 has a user interface in which a user can manually set and adjust a desired temperature. In some embodiments, the user interface may include a display and interface located on the system 100 and/or a user interface remotely disposed from the system 100 where the remotely disposed interface may be coupled to the system 100 via a wired link and/or a wireless link.
(22) In various embodiments, the heat transfer assembly 112 heats or cools the air passing there across using a plurality of TECs. The temperature of the TECs may be controlled by controller 110 utilizing a pulse-width modulation and/or voltage variance in a manner adapted to reduce power consumption. In some embodiments, the system 100 may be powered from the vehicle's battery unit 118. Some embodiments may contain an alarm or auto-start function to prevent the battery 118 from discharging beyond truck-cranking capability. In some embodiments, the system 100 may be powered from a power supply independent of the vehicle's battery. In some embodiments, the system may utilize a solar array 120 to use and/or store solar energy. The solar array 120 may have an internal battery to maximize the solar energy available for use. In various embodiments, the system 100 may store energy for later use by cooling a phase-change medium disposed in an insulated unit, such as, for example, an ice tank. Thereafter, air may be cooled using this stored cooling prior to being used to cool the enclosed space either with or without additional cooling.
(23) Referring now to
(24) Referring now to
(25) Applicants note that
(26) In a second example, the present disclosure provides additional vehicle air comfort systems and methods. As will be discussed in more detail below, the vehicle air conditioning systems in the second example can incorporate various components of the vehicle air conditioning systems of the first example described above. With reference to air comfort system 400 shown in
(27) As shown in the embodiment in
(28) In the embodiment shown in
(29) Similarly, various heat transfer fluids may be used in the vehicle air comfort systems of the present invention. For instance, in some embodiments, the heat-transfer fluid can be a coolant. In other embodiments, the heat transfer fluid can be water. Other suitable heat transfer fluids may also be envisioned by people of ordinary skill in the art.
(30) Referring again to
(31) Various thermal exchange assemblies may also be used with the vehicle air comfort systems of the present invention. For instance, and with reference again to
(32) In some embodiments, the thermal exchange assembly may be a radiator. In other embodiments, the thermal exchange assembly may be a heat pipe, such as a heat pipe described and disclosed in U.S. Pat. No. 6,935,409. In other embodiments, the thermal exchange assembly may constitute one or more components of a heat transfer assembly, such heat transfer assembly 300 shown in
(33) In the embodiment shown in
(34) Vehicle air comfort systems in accordance with the second example described above have various modes of operation. For instance, in some embodiments, and with reference again to system 400 in
(35) In the embodiment shown in
(36) In some embodiments, air comfort systems of the present invention can cool unconditioned air. In such embodiments, the thermal conditioning of the heat transfer fluid entails the cooling of the heat-transfer fluid. This can occur through the extraction of heat from the flow tunnels by the TEC's (as previously described) as the heat transfer fluid passes through the flow tunnels. Similarly, in such embodiments, the thermal exchange entails the transfer of heat from the unconditioned air to the cooled heat transfer fluid to result in the cooling of the unconditioned air.
(37) In other embodiments, air comfort systems of the present invention can heat unconditioned air. In such embodiments, the thermal conditioning of the heat transfer fluid entails the heating of the heat-transfer fluid. Such heating can occur by the addition of heat to the flow tunnels by the thermoelectric coolers (as previously described) as the heat transfer fluid passes through the flow tunnels. Similarly, in such embodiments, the thermal exchange entails the transfer of heat from the heat transfer fluid to the unconditioned air to result in the heating of the unconditioned air.
(38) The conditioning of air by the use of the vehicle air comfort systems of the second example can also be in response to one or more monitored conditions, as previously described. Likewise, as described previously, such monitoring can occur by one or more sensors that may be detectable on a user interface.
(39) As will be understood by one skilled in the art, the order and arrangement of the above-mentioned steps may be varied while still accomplishing the goals of the present invention. Likewise, in additional embodiments, one or more of the above-mentioned steps may be entirely absent while sill accomplishing the goals of the present invention.
(40) Furthermore, as will be understood by one skilled in the art, the order and arrangement of the above-mentioned components of a vehicle air comfort system in accordance with the second example depicted in
(41) The broad scope of vehicle air comfort systems in accordance with the second example of the present invention can be further illustrated by reference to
(42) In the embodiment shown in
(43) In the embodiment shown in
(44) Turning now to
(45) Referring again to
(46) Vehicle air comfort system 500 shown in
(47) Although various embodiments of the method and apparatus of the present invention have been illustrated in the accompanying Drawings and described in the foregoing Detailed Description, it will be understood that the invention is not limited to the embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions without departing from the spirit of the invention as set forth herein.